Tomographic reconstruction algorithms for structured gas density profiles of the targets for laser wakefield acceleration

0537013 - FZÚ 2021 RIV GB eng J - Journal Article
Lorenz, Sebastian - Grittani, Gabriele Maria - Goncalves, Leonardo V.N. - Lazzarini, Carlo Maria - Limpouch, J. - Nevrkla, Michal - Bulanov, Sergey V. - Korn, Georg
Tomographic reconstruction algorithms for structured gas density profiles of the targets for laser wakefield acceleration.
Measurement Science and Technology. Roč. 31, č. 8 (2020), s. 1-11, č. článku 085205. ISSN 0957-0233. E-ISSN 1361-6501
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606; GA MŠMT EF15_003/0000449
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789; OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449
Institutional support: RVO:68378271
Keywords : laser wakefield acceleration * laser plasma acceleration * gas target * tomography * tomographic reconstruction * interferometry * density profile
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.046, year: 2020
Method of publishing: Limited access
https://doi.org/10.1088/1361-6501/ab7cf5

The output of a laser wakefield accelerator depends strongly on the density profile of the gas target. In this work we focus on the reconstruction of 3D density profiles from tomographic measurements. We compare analytical and iterative methods, and we propose a new one, the filtered algebraic reconstruction method (FARM), which is tailored for the reconstruction of gas targets for laser wakefield acceleration. Several methods are tested on both simplified and realistic geometries. The algorithms are evaluated in terms of the quality of the density profile reconstruction, the number of projections needed and the computation time required.
Permanent Link: http://hdl.handle.net/11104/0314772